An aftermarket Bosch style coolant temperature sensor complete with anodised silver 32mm radiator top hose housing for use with the NODIZ and ME221 ECU. The ME221 comes calibrated for use with this sensor. May also be suitable for other manufacturers' ECU's. Connection is industry standard 2 pin mini timer (suits our plug and play Ford/Vauxhall ECU looms). T-piece can be simply installed into your radiator top hose and is supplied with 2 hose clamps